Definitions for "Ignition interlock"
A machine connected to car's ignition that checks for the presence of alcohol in the driver. The driver is required to blow into the mechanism in order to start the car and continue to periodically blow into the interlock device to keep the car in motion.
a breath alcohol analyzer, which is connected to a vehicle's ignition system
a breathalyzer installed into a car that will not allow the car to start until given